NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

CRESTON prefixes in area code 641

NANPA records 6 assigned NXX blocks to rate center CRESTON in area code 641, 1.0% of the 584 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 4 holders hold those blocks, the largest being UNITED STATES CELLULAR - IA (2), WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH (2), NEW CINGULAR WIRELESS PCS, LLC - IL (1). The earliest assignment on record here is 2001-02-14 and the most recent 2023-11-27. 5 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 234, 318, 330, 336 – overlay codes cover the same geography, so a rate center is served by all of them.

6 assigned blocks – 1% of 641
4 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
641-202 UNITED STATES CELLULAR - IA 2001-02-14 yes yes
641-256 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2023-11-27 yes yes
641-278 Windstream WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 2007-08-21 yes yes
641-344 UNITED STATES CELLULAR - IA – yes yes
641-362 MCC TELEPHONY OF IOWA, LLC - IA 2019-02-12 yes yes
641-782 Windstream WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH – no yes

The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.

Who holds the blocks

HolderBrandBlocksShare here
UNITED STATES CELLULAR - IA – 2 33.3%
WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH Windstream 2 33.3%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 16.7%
MCC TELEPHONY OF IOWA, LLC - IA – 1 16.7%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to CRESTON in area code 641?

6 blocks: 202, 256, 278, 344, 362, 782. The table above gives the holder of each.

Which carriers have numbers in CRESTON?

UNITED STATES CELLULAR - IA (2 blocks), WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), MCC TELEPHONY OF IOWA, LLC - IA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CRESTON a city?

It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.

Other rate centers in 641

All 584 prefixes in 641